Transcript for Mother Faces 20 Years for Warning Shot: 'This is My Life'

Now, to the florida mother who could soon be released from prison after winning aen appeal in her stand your ground case. She was sentenced last year to 20 years for firing a single shot that she claims was a warning shot. Abc's steve osunsami has her story. Reporter: This morning, a mother's plea for freedom. This is my life I'm fighting for. This is my life. And it's my life. And it's not entertainment. It is my life. Reporter: Marissa alexander, the other face of florida's controversial stand your ground law, telling cnn, she was defending herself, when she fired a warning shot during an argument with her husband in december 2010. He put his hands around my neck. Reporter: Alexander's lawyers argued she was standing her ground. The florida law that was widely discussed before the george zimmerman trial down the road in sanford. But didn't work here. The mother of three has been jailed and away from her children since february of 2011. Sentenced to 20 years in prison. Not for murder. But for firing into a wall at her home. Today, she'll face a florida judge once again. This time, begging him to set her free while she waits for a new trial. An appeals court ruled in september that the original judge gave the jury wrong instructions. In court papers filed tuesday, alexander's lawyers argue that there's no evidence she poses a risk of flight. Or that she poses any general danger to the community. Even her now-ex-husband is saying her prison sentence was too severe. I didn't want my wife to go to prison. I wanted to help her. Reporter: This morning, after more than two years in jail, she's hoping she'll be able to see her children before christmas. For "good morning america," steve osunsami, abc news, atlanta.

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